It is consistent with the answer given there. My possibility #2 was informed by the statement in the LJ support threads.
They do not state when the bad password protection went into place. It could be "recently".
"It's likely that you and your cross-posting plugin use different login sessions when connecting to LiveJournal" -- it is true that the crosspost function uses a different login session. You give Dreamwidth your LJ password and the function uses that to authenticate. It is not a "plug-in" though. The crosspost is not made from your browser but via the Dreamwidth servers.
"...that the plugin uses the same IP address for different users. " And this is true because the method posts from the IP range of the dreamwidth servers.
This then sets the stage from someone to use the wrong password enough to "exceed the limit of failed login attempts," my point number 2. It seems less likely that one person could cause 24 hour failures for dreamwidth, though, it it is truly a temporary ban. Many people who have changed passwords at LJ without making the corresponding change at DW could trigger the ban.
no subject
They do not state when the bad password protection went into place. It could be "recently".
"It's likely that you and your cross-posting plugin use different login sessions when connecting to LiveJournal" -- it is true that the crosspost function uses a different login session. You give Dreamwidth your LJ password and the function uses that to authenticate. It is not a "plug-in" though. The crosspost is not made from your browser but via the Dreamwidth servers.
"...that the plugin uses the same IP address for different users. " And this is true because the method posts from the IP range of the dreamwidth servers.
This then sets the stage from someone to use the wrong password enough to "exceed the limit of failed login attempts," my point number 2. It seems less likely that one person could cause 24 hour failures for dreamwidth, though, it it is truly a temporary ban. Many people who have changed passwords at LJ without making the corresponding change at DW could trigger the ban.